adv.无疑地；确定地
I shall doubtless see you tomorrow. 我大概明天会见到你。
It will doubtless rain on sports day. 开运动会那天多半会下雨。
John will doubtless come early as he always does. 约翰无疑会像平时一样很早就来。
Doubtless he'll be bringing his guitar, as usual. 他很可能跟平常一样会带吉他来。
It would doubtlessly do Bertha no harm. 这对伯莎肯定是无害的。
